Stitcher-feeding mechanism for tire-making machines



' V,5 Sheets-511965 'l Q MN.

' E. D. PUTT Filed July 10. 192,0

STITHER FEEDING MECHANI-SM FOR TIRE MAKING MACHINES N'ov 17, 19275l Nov. 17,1925. 1,562,362 E.' D. PUTT I STITGHER FEEDINGMEQHANISM FOR TIRE MAKING MAcINEs Filed July 1o, 192o..` y5 sheets4sneet 2 New. 17, 1925.-- y 1,562,362,

- E.'v D. PUTT l 4STITGHER FEEDXNG MEGHANISM Fon 'man MAKING MACHINES Filed- July 1o. 1920 ssheetslsne'et s v Nov. 17. 1925 E.' D; PUTT STITCHER lFEEDING MECHANISM FOR TIRE MAKINGMACHNES FilealJuly 10 1920 5 Smets-snm .v

y l A:

Nov. 17 1925- K E. D. PUTT STITGHER FEEDING. MECHANISM FOR TIRE MAKING MACHINES Filed July 1o, 1920 5 sheets-sheet' s ,Zia/@m22 7i' ,g1g/ward @filly cation and laying 'of the lideclianism for within Figv 5 is abottom View emr AVAILBLE come Patented Nov. y 17, 1925 y UNITED STATES" PAT EDWARD D. PUTT,

Y BER COMPANY, 0F AKRON,

` sTImcHriR-Fnnnme MECH/amsn Fori ENT orifice.l

OF AKRON, OHIO, ASSIGNOR TO v'lI-IE FIRESTONE TIRE AND RUB- OI-IIO, .A CGRPORATIQN 0E OHI.

ferien-MAKING MACHINES.

Application filed July 10, 1920. Serial No. 395,219.

To aZ whom t may concern: n

lle it known that I, EnwAiu) D. Turi', a citizen .of the United States, residing at `Akron, in the county olf Summit and State of Ohio, have invented certain new ,and usel'ul Improvements in Stitcher-'alieeding Tire-Making. Machines, of which the followingis a speeication.

This invention relates to mechanism for feeding or advanelng,stitchers `or spinning .rollers el a tire making machine radially' alongthe sides olV a tire core in the applii fabric about the core during the building operation. lt rclates particularly to a devicefor automatically slowing lup or retarding the radial advance of the stitchers while they are being fed over the bead of the tire. It also consists oi' thecombination of the`automatic retarding mechanism With means `for changing the angle of the stitchers as they pass around the bead.

llhis stitcher feeding` mechanism is an im-- provement on the feeding device shown in the application of lViliiam C. Stevens, Serial No. 256,429,1iled October 1, 1915.

The device as speci lically shown includes aftwo rack feed for the sttchers which racks mesh with differential pinions, the larger pinion feedingthe stitchers forward until the bead is reached, whcreuponithe feeding action passes to the smaller pinion.

l/'Vhile described as such a combination of elements, the invention is not so limited but may comprise other means and mechanism for performingthc same train of movements the scope of this invention. In'the drawings:

Eig,v `l is a plan View of the stitcher mechanism.

l" Fig, 2 isa longitudinal section.

Fig. 8 is a front elevation.

Figljisa transverse section.

` of the stiteher feeding racks. v

Figs. 6 and -7 are4 plan views of the stitchersjust prior. to the'comniencement of the spinning operation and at the headline,

respectively.

Fig. 8 isa detailv of the racks.

Fig. O is a detail of the ratchet for resetting the racks.

Fig. l() is an enlarged section through the pinions which operate the` ratchets. e'

Thisinvention vrelates to the device 'for advancing the stitchers or spinners over a core and forming the fabric about the body el the carcass and the bead.

The core is shown at 1V and the fabric at 2, thev beads being designated by the nume al L lhe body or framework oli/the machine is shown at4, from which suspended by means ol bolts 5 a box or casing (i in which is located the stitcher carrying slide. The mechanism for operating the' stitchers and much oi the details Will. not be described in this application my invention relates only to v the differential speed vvdevice by which the retarded movement o the Stitcher is obtained atthe bead line, together With the means .i'or changing the angle of the stitcher at the time the;feed is retarded.

The stitchers, which' are freely rotating disks 7 are mounted on the ends oi angular levers or arms 8, pivotally mounted at 9 in the ends of'leve'rs l0, which are extended rearwardly, curved, and pivoted at 11 on arms 12. The last mentioned arms are connected to links 13 pivoted on a common stud de, rising from a carriage 15,. vslidably `mounted in guideways 1G formed in the Ilower plate 17 of thev box or casing 6'. 0n4 the ,upper side ofi the plate .17 and projectthe guideway 16 are-secured cam plates y18. 'lhese cam plates are formed. with guideways .or slots'il-i) in which travel rollers 20 carried on the forward end of the arms l2, thecams being shaped so as to guide the arms 12 in a path which will. cause the ylng over `the carriage` `15 to maintain itin stitchers tol follow the curvature of the core are piroted at l'i and fas washers and nuts 22 which serve Ato adjustably 'regulate the tension cj,"

thev springs, a

'l5 the-,angle of the stitcher is changed in passv whereby the arms ma yield slightly 44 on one side'of the center line is carried :asslng over spllces. et screws 23 serve a sleeve 46, the outer end of which carries a pillley 47 connected by chain 48 with a 111 to unit ythe approach of the arms.

, -The bell crank levers 8 are connected by return spring seated in a cylinder 49, the

flinks. 24 to arms. 25 pivoted on arms 10 at ,purpose of which is to return the stitchers l26,- the ends of arms A25 projecting in posiiterthe pinion 28 is disengaged. Vtion to be struckby pins 27, secured onthe .Qvflf he sleeve 46 carries one member 50 of a ca/sing, the arms overlying each other and y"friction clutch (Fig. 3), the other member the pins projecting in opposite directions being designated by the numeral 51. The

from the top and bottom of the casing. The two inenihersoi the clutch are pressed t0- pms are located at Such a point that when gether by a spring 52. Rotation is transthe stitchers yarrive at the bead line, the mitted to the sleeve 46 through the friction y the levers 25 will be rocked and the stitchers clutch in sufficient force to advance the 71 Willbe moved about the point 9 whereby stitcher.

The sleeve 46 carries a. pinion 53, and on ing around the bead. Springs 24a,,surtheshaft 44 is carried va pinion 54, the latter "opposite endort` which carriesa pinion y iinA mesh with a gear 36 on' the shaft 4 '30, gear 53 1nay be connected by sprocket 65 `v`vhich is driven from any-suitabievsource'of and chain 66 to any suitable cushioning deJ pin on the lever 3% When `in the posid v l tion shown in Fig.. 2 the -plnion .1s out oi described. Assunnngthe core 1 to have the 4 willbe described later.`

rounding, links 24 serve to hold the rollers being somewhat smaller than the former. 7 inthelr proper position;` and allow them To the shaft .44 is secured a collar or sleeve 'to accommodate irregularities in the surface 55 on which are pivoted pawls 56 which of the core or fabric. engage ratchet 57 formed on the gear 54.

'Power to drive the racks and 'advance (')n the underside .of the stitcher carriage thev .stitohers is derived from a pinion 28 15 is formed a rack 58 with which the pinion Whichis carried on the end of an arm 29 53 engages, and in the stitcher carriage is carried on. a shaft 30,supportedin hangers supported a sliding or floating rack 59 .3l-depending from the casing6; An operwhich engages the pinion 54. On thel under- *ating leveror handle' 32 is secured to the side oit' the carriage' is secured a pin 60 'shaft-30 and'by movement oi' .this lever the which limits the forward movement of the. pinion 28 is thrown into or out of mesh with rack 59 with respect to' rack 58, and a' pin large gear 33 which-operates the rack as 6l on the rear. ot the rack engages an abutment 62 to limit the rearward n'i'ovement pv-The gear 28 is securedl onza. shaft' 34, the of rack 59.

A gear 63 onshaft 64 and in mesh with power;v A latch 37-is pivotally sus ended vice, 'it desired, for breaking the torce of from an adjustable plate 38- and 1sarmed Vthe return moven'ient of the stltcher carwith an angular slot-.39 which receives a ringe'.

mesh with the rear 433, bntfif the lever 32 yfabric applied theretonnd ready tov stitch, isi/raised, the pinion will become ernmeshed the stiteher carriage.' being' in retracted posi` The operation of thc device. willhe briefly i land the latch'will dropsothat the pin will tion, the parts .are in the positions shown in move into the portion the slot. This Fig'. G, in which it will be noted that the l will servente h'old the pinion in mesh until vh'oatin, j rack 59 is in contact with pin 60,

v strikes the underside ofthe. latch and raises the carriage has advanced to its forward .the positionbeng shown more clearly in limit whreupon a pin 42 on theI carriage Fig. 8. l

The lever 32 ls'now moved so that nnit, releasing the pin and causing the pinion ion- 28 engages gear the latch 37 drop-` to clear the gear. lThe stitchercarrying earping into position to lock` the` arm 32v in ringe is then returned by a spring' oreouuterraised position. Rotation is transmitted weightt'o be described. To provide a yieldthrough .shaft 44, friction clutel. -50 and 5l, ingr connect-ion in the 'gearing which ad. sleeve 46 to pinion 53 which. iu mesh with varices the stitchers, so that in ease of meet rai-k 58. moves the carriage 'iol-ward. t ing; an obstruction the drive will slip andthe this point it will he noted that pinion 54 is stitcliers he saved, any suitable forni of tresmaller than' pinion 525, and ns a resnll.. the

tionalf connection may 'he provided. A raek 58 which is advancing' throuoh the, eonvenient arrangement ia shown nt 425 in jl'ru-tlon elutch is niovn'uel 'faster thali raelr Fig. 3 in which n. friction oluteh designated \5S) which: is iulrani'ing;l throughpower trans. nutted directly Iroui shaf't 44. pawl and,

bythe .numeral 43 is provided betwecp the ,fg-ear 35 and the shaft 34.v This arrangement will save much .valuable time and paiits in the operation of the machine. l

The large gear 33 is sccured'to a [main shaft 44 mounted in bearings 45 'and cxitending' nnder the easing-6.` Around the 'shat't ratchet 56 and 57 and pinion 54. A s a result. rack 58 catches up on rack 59 until pin 6l strikes the abutment 62. This point oeeurs just as the. spinning" roller reaehesthe, head line and just as the spinner is turning, as shown in Fig. 7

reo

nausea i As the pinion 54 is directly driven from shaft 44, the friction drive for the pinion 53 must give Way and the two racks advance 'together moving at the speed givenI 'by ratchet 57.. vThis action gives slow advance around the head so that the spinning rolls may 'do their work properly at this point,4 and the advance continues until thepin 42 strikes latch 37, releasing the pinion 2S from driving position. The spring or weight returns Ithecarriage to its original position.

On the backward movement `ofthe car riapre, the paw] 56 slips over the ratchet and the rack 59jis stationary until itis struck hy pin 60, reassnming itsstartin position,

The slower ladvance of the stitc ers is 'ob- Y tained, not only by theditferential pinions S3-and 54, but by vthe turning movement of the stitchers lthrough the levers and connected parts Serving tomove their active point liackwardly.

. It will be seen that a simple and eective mechanism is devised for the automatic re I tarding of the stitchex's or spinning rolls at the head line. and while the description' has been detailed', changes in size orarrange-y nient of parts o r other details may be made4 without departing from the invention. I-claim 1, In a tire making machine, a carriage,-

'shapiiig' toolsl iiio'iuited thereon, 'means io:- advancing said carriage radially ofthe core, and automatically actuated means for reducing the speed of advance of the -carruige when said tools reach the head line of lhe tire.

2. lnv a tire making machine including a.

rotatable core. spinning rollers, means for advancingsaid spinning rollersia-dially of .the core. and automatically actuated means for adjusting tl i` angle oi' the spinning rollers as they engage the headportions of the .Stn-c and siiiiult-.inoously changing the speed 45l i justment.

oi their advance independently of said ad- 3. .ln a tire making machine, a core, a .radially moving carriage, stitchers carried -on saidearriage, a feeding device for said "they reach the yhead of the tire, meansl to niovesaid carriage radially of the core., and change speed mechanism in said carriage moving means operativo to retard the adv'aiiee ol' the. carriage when the stitchers reach 'the head.

5. ln a tire limiting machine, a core, a carjwith thc smaller riage, stitchers pi'votallysupported by said carriage. means for automatically changing Athe angle ofthe stitchers at the head line,

means' to move said carriage radially ot' the core, change Speed mechanism in said earriage iiiovingnieans, and means to render said .change speed mechanism operative automatically at lthe same time that the an-y gle changing mechanism becomes operative.

6. In a tire making machine, a sliding eari'iage, st itchers supported oii said carriage.

a rotating shaft, variable specd'gearing he-l tween said shaft and said carriage, and means for automatically shifting i'roii'i high to low speed in said gearing. y

' 7. In a tire making machine. a. sliding carriage, stitcliers supported on said. carriage. a drive shaft adjacent said carriage, a large and 'small pinion driven by' said shalt. connectionsfrom said gearing to said carriage .to advance it at different speeds, and means for shifting t, ions to the" other Ina' tire making pm achin'e. a 'sliding carriage, stitchers lsupported `on said carriage, a .drive shaft adjacent said carriage.

he drive from one of said pin` ay largefnd .small pinion on vsaid shaft.

pinions, and .means for shifting thc driving of said carriage from one 'of said pinioiis,

and racks to rthe other pinion and rack.

9. In a tircmaking 'inaehine, a sliding.'

carriage, stitchers supported on said cai'- ringe, a drive shaft adjacent said carriage'.

a large pinion and a small pinion ou. said shaft. said large pinion being fiietionalliv driven from said "slial'h a rack secured to said `ca -frriilige meshing with said large piuion, and a floating rack on said carriage in meshrwith the smaller piuionl V.10.'In a tire making machine. a sliding carriage. stitchers supported on said earriage, a driveshallfadjacent said carriage, a large pinion and a small piuiouron said shaft, said large pinion heing frictionally driven from said shaft. a rack secured to said carriage meshing with said large pinion. a floating rack on said carriage in mesh for said racks. 1l. I n a tire making machine, a sliding "carriage, stileliers supported on said carriage. a drive shaft adjacent said* carriage,

a large pinion l'ieiioiially driven 'i'roiii said shal'l. a smaller pinion. ralchet cininections lielwecii iliismaller pinion and said shaft, a rack secured lo said carriage niesiiiiig with said large piuioii lsaid carriage in mesh wilh the smaller pinli)ll pinion. and contact points and a l'loaling rai-,k on

ino

lili'i l2 ln a tire making machine a sliding carriage` stiteliers suppoi'iedoii said carriage a ilrivc shall adjacent said ,cai-ringe,4

a large piiiioii` lriclionallvdriven from said simil. a. smaller pinion. ratchet connections dfi.

between the sundial' pinion. and said si aft, :l wick 'seemed to Said carving-e: meshing with mid imlie pinion :l mring rank un said cm'- I an@ in mosh with die snniilez' pinion, and minet points; for Said yank 3. llnn -iifei making muvhin, u, sliding' ifm-ringe? Sticiuu's :ruli'pm'tcd on said (giu.- z'iag'le.) a drive shaft adjn-vni said carriagm u, img@ pininn iic'rimmiy d viven from Said SN'LL mnuiei pinion. rziiiciwt cannvutifms iwtuwn in@ smaila pinion und mid shaft, a maiz ieciziued tu mid nuil'iugv invshilxgf with 'd aigfefpinimn a Hunting i'zn'k on said f'funpirftimi nf fue siitciiing opi-ration.

1` a" :n il l making nm'hine.` n sliding; mit ners suppovvd on said (".ul i drive shaft udja'con mid Cavriago, Y, piniim iif'tiormily diivmi 'fi-mn :mid i maden pinion, mrhmi winne-tinus iituwzfn die 'zuaiel' pinion and said shaft, 'uvm'i in .mid carriage meshing vvin in fn, u fimlting rack on mid 'n nufrsi WM?, the snnilliu' pinimn ifm' sind. maken :md means fm' M i'i'ffe igon munpietinn 0i i. iiegsmswu a um x'imkingg numbing n:

n, drive shaft adjmfent said cmi-iugm ns im' raving sani carriage from ,uid

drive Shaft comprising' ii 'friction transmislsion device, a second drivin 1 mechanism foi' said van-inge from said shaft, Said fist 35 named di'ivingr mefhnnium bocmning inactivc through Huid friction device ivlicn the, socnd dii'i'v nwciizinisni comes intr) m'i'imi.

14'. in u iirv 1nz1kin; i` nnicliiiw.y :i sliding anii'iugo, Htif'lnu@ .wuiipm'tmi upon said wu'- 40 ringe. :i dlivi` snuit adjacent Huid ven'iiagggvf nimma fmdrivin; Suid ('ai'l'iuw :it im) mtv (if udvunw comprising u fl'n'tiun transmisuiun devico, u' unwind driving nncliunisni :xvi'zingcd (n olwmto said czil'riajjc in unvf di- 45 imlion only. yuuid -iiiqt named driving` nwvn anisni becoming inznive through said iriw tion dvivv, ivhon the wvond di'iwinnr'huniain minos into :ictioxu and umanafor vulurning tho rsn'riago :it tliil vnd 0i' the .din-hing 0pm'zitiun.

17.111 :i iii-e nmlv'ing!y nnu'iiiniJ in `iudinf a, rotatable wie, :i Support, a cai-viaggi mountod upon tiw suppru for rv(:ip1'm'u,1nu," xnovcnivnt, with ivspvc't tn the 0111. i'uhuiwiv udiustnviilo stihzinu's upon the niviugna und a ('mnnnm driving' nwuhnnism :idnpvd to 1'0- afipioruv iii@ ,fziiiiajje, sind adjust. tim, stiilcii- (u'n Imid niwiifixiii-:nl being turisti-mieli for :iumnnztif' operation' to sinuiltuncousiv 50 vining *die wreed of mnveinvnt mi' the cui-"- i'ialga :indciiift 111m :nijuuiment of said alitciipz'.

'WARD D. 'PUTI l 

